Trace number 3153957

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
sattime2011 2011-03-02SAT 0.096985 0.097333

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v800-c3408-S846876765-035.SATISFIABLE.cnf
MD5SUM0d5f032713ed63748b72ef45ba69a269
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05599
Satisfiable
(Un)Satisfiability was proved
Number of variables800
Number of clauses3408
Sum of the clauses size10224
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 33408
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.05/0.09	c 0 clauses are redundant and removed
0.05/0.09	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.05/0.09	c 0 vars are fixed and 0 clauses are removed after lookahead
0.05/0.09	c initial seed is 50123335
0.05/0.09	c try=1 flip j=187538 walk=165257 seed 50123352
0.05/0.09	c A solution is found
0.05/0.09	s SATISFIABLE
0.05/0.09	v 1 2 3 4 -5 6 7 -8 -9 -10 -11 12 -13 -14 -15 -16 17 18 19 -20 -21 22 -23 24 -25 -26 27 28 -29 -30 31 -32 33 34 -35 -36 37 -38 39 -40 -41 -42 -43 44 -45 46 -47 -48 49 -50 -51 52 53 54 55 56 57 58 59 -60 61 -62 63 -64 -65 66 -67 -68 69 -70 71 72 -73 74 75 -76 -77 -78 -79 80 -81 82 -83 -84 -85 86 -87 88 89 90 -91 92 93 -94 -95 -96 -97 98 -99 -100 -101 -102 103 -104 105 106 107 108 109 -110 111 -112 -113 -114 115 -116 -117 118 -119 120 -121 122 -123 124 125 -126 -127 -128 -129 130 -131 132 133 -134 135 136 137 -138 139 -140 141 -142 -143 144 -145 -146 147 148 149 150 -151 -152 153 154 155 156 -157 158 159 -160 161 162 163 -164 165 166 -167 168 -169 170 171 -172 -173 -174 -175 -176 177 -178 -179 180 -181 -182 183 -184 -185 186 -187 188 -189 -190 191 192 193 194 195 196 -197 -198 -199 200 201 202 203 -204 -205 206 -207 208 209 -210 211 -212 213 214 -215 -216 -217 -218 -219 220 -221 222 223 224 -225 -226 227 -228 229 230 231 232 233 234 235 -236 237 238 239 240 241 242 243 244 245 -246 247 248 249 -250 251 -252 253 -254 255 -256 -257 -258 259 260 261 262 263 -264 265 266 267 268 -269 -270 271 -272 273 -274 275 276 -277 278 -279 -280 -281 282 -283 284 285 -286 -287 -288 -289 -290 291 -292 293 294 295 -296 297 -298 -299 300 301 -302 303 -304 -305 306 307 308 -309 -310 -311 312 313 314 -315 -316 -317 318 319 -320 -321 322 -323 -324 325 -326 327 -328 329 -330 331 332 -333 334 335 -336 -337 338 -339 340 -341 -342 343 -344 -345 -346 347 -348 -349 -350 351 352 -353 -354 355 -356 357 -358 -359 360 361 362 363 -364 365 -366 367 368 369 -370 -371 -372 -373 374 375 -376 377 378 -379 -380 381 -382 383 -384 -385 -386 387 -388 -389 390 -391 392 -393 -394 395 -396 397 -398 399 -400 401 -402 403 -404 -405 406 407 -408 409 -410 411 -412 -413 -414 415 416 -417 -418 -419 -420 -421 422 -423 424 425 -426 -427 428 429 430 -431 -432 433 -434 -435 436 437 -438 439 -440 441 442 -443 444 445 446 447 -448 -449 450 451 452 453 -454 455 456 -457 458 459 -460 -461 -462 -463 464 465 466 -467 -468 469 470 471 472 -473 -474 475 476 477 478 479 -480 481 482 -483 484 485 486 -487 488 -489 490 491 -492 -493 494 495 496 497 -498 499 500 501 502 503 504 505 -506 -507 508 -509 -510 -511 -512 -513 -514 -515 -516 517 -518 -519 520 -521 522 -523 -524 525 -526 527 -528 -529 530 -531 532 533 534 535 -536 -537 -538 539 -540 541 -542 -543 544 545 -546 -547 548 549 -550 551 552 553 -554 -555 556 557 -558 559 -560 -561 562 563 564 -565 -566 -567 -568 569 570 571 -572 -573 574 575 -576 577 -578 579 -580 581 -582 583 -584 -585 586 587 -588 -589 590 -591 -592 593 594 595 596 597 -598 599 -600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 -615 -616 617 -618 -619 -620 -621 622 623 -624 625 -626 -627 -628 629 -630 631 -632 633 -634 -635 636 637 638 -639 640 -641 -642 643 -644 -645 646 -647 648 -649 650 -651 -652 -653 654 -655 656 -657 658 -659 660 -661 -662 663 664 -665 -666 -667 -668 669 670 671 672 673 674 675 -676 677 -678 -679 -680 -681 682 683 684 -685 -686 687 688 -689 -690 691 692 -693 -694 -695 -696 -697 -698 699 700 701 702 703 -704 705 -706 -707 708 -709 -710 711 -712 713 -714 715 716 717 -718 -719 -720 721 722 -723 -724 725 726 -727 728 -729 730 731 732 -733 -734 -735 736 737 -738 739 740 741 -742 -743 744 745 -746 747 -748 -749 -750 751 752 753 -754 -755 -756 757 758 -759 -760 761 762 -763 -764 765 -766 767 768 -769 -770 771 772 -773 774 775 -776 777 778 -779 -780 -781 -782 783 784 -785 786 -787 -788 789 -790 791 -792 793 794 -795 796 -797 -798 799 800 
0.05/0.09	v 0 
0.05/0.09	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3153957-1301685101/watcher-3153957-1301685101 -o /tmp/evaluation-result-3153957-1301685101/solver-3153957-1301685101 -C 2400 -W 1300 -M 7680 sattime2011 HOME/instance-3153957-1301685101.cnf 50119878 

running on 2 cores: 5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.94 1.99 3.08 5/182 8536
/proc/meminfo: memFree=21175860/32951132 swapFree=67111528/67111528
[pid=8536] ppid=8534 vsize=1185980 CPUtime=0 cores=5,7
/proc/8536/stat : 8536 (sattime2011) R 8534 8536 7195 0 -1 4202496 411 0 0 0 0 0 0 0 21 0 1 0 280108731 1214443520 352 33554432000 4194304 4230460 140736235540800 18446744073709551615 4222055 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8536/statm: 296495 352 117 9 0 293652 0

[startup+0.0559569 s]
/proc/loadavg: 0.94 1.99 3.08 5/182 8536
/proc/meminfo: memFree=21175860/32951132 swapFree=67111528/67111528
[pid=8536] ppid=8534 vsize=1185980 CPUtime=0.05 cores=5,7
/proc/8536/stat : 8536 (sattime2011) R 8534 8536 7195 0 -1 4202496 448 0 0 0 5 0 0 0 21 0 1 0 280108731 1214443520 389 33554432000 4194304 4230460 140736235540800 18446744073709551615 4218780 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8536/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1185980

Solver just ended. Dumping a history of the last processes samples

[startup+0.0559569 s]
/proc/loadavg: 0.94 1.99 3.08 5/182 8536
/proc/meminfo: memFree=21175860/32951132 swapFree=67111528/67111528
[pid=8536] ppid=8534 vsize=1185980 CPUtime=0.05 cores=5,7
/proc/8536/stat : 8536 (sattime2011) R 8534 8536 7195 0 -1 4202496 448 0 0 0 5 0 0 0 21 0 1 0 280108731 1214443520 389 33554432000 4194304 4230460 140736235540800 18446744073709551615 4218780 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8536/statm: 296495 389 117 9 0 293652 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1185980

Child status: 10
Real time (s): 0.097333
CPU time (s): 0.096985
CPU user time (s): 0.096985
CPU system time (s): 0
CPU usage (%): 99.6425
Max. virtual memory (cumulated for all children) (KiB): 1185980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.096985
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 452
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 0

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node128 at 2011-04-01 21:11:41
IDJOB=3153957
IDBENCH=83064
IDSOLVER=1563
FILE ID=node128/3153957-1301685101
RUNJOBID= node128-1301685101-8502
PBS_JOBID= 12840569
Free space on /tmp= 70976 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S846876765-035.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3153957-1301685101/watcher-3153957-1301685101 -o /tmp/evaluation-result-3153957-1301685101/solver-3153957-1301685101 -C 2400 -W 1300 -M 7680  sattime2011 HOME/instance-3153957-1301685101.cnf 50119878

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 0d5f032713ed63748b72ef45ba69a269
RANDOM SEED=50119878

node128.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.70
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5434.49
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      21176140 kB
Buffers:        333860 kB
Cached:       11100968 kB
SwapCached:          0 kB
Active:        7922884 kB
Inactive:      3577760 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      21176140 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           31192 kB
Writeback:           0 kB
AnonPages:       65500 kB
Mapped:          15232 kB
Slab:           212432 kB
PageTables:       4664 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:  2594280 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 70960 MiB
End job on node128 at 2011-04-01 21:11:41